A contractor had got a contract to build $4900$ buildings in a perfect square. The extra space is provided for keeping distance and so on. How many buildings will the contractor be able to make in a row and columns to get a perfect square number?

81

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70

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56

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17

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Solution

The correct option is B $70$
To get the number of buildings in a row and column, we need to find square root of $4900$
Number of buildings in a row $=$ Number of buildings in a column
$\sqrt{4900}$ $=$ $70$
Hence, Option B is correct.

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A contractor had got a contract to build 4900 buildings in a perfect square. The extra space is provided for keeping distance and so on. How many buildings will the contractor be able to make in a row and columns to get a perfect square number?

The correct option is B 70To get the number of buildings in a row and column, we need to find square root of 4900Number of buildings in a row = Number of buildings in a column√4900 = 70Hence, Option B is correct.

A contractor had got a contract to build $4900$ buildings in a perfect square. The extra space is provided for keeping distance and so on. How many buildings will the contractor be able to make in a row and columns to get a perfect square number?

The correct option is B $70$
To get the number of buildings in a row and column, we need to find square root of $4900$
Number of buildings in a row $=$ Number of buildings in a column
$\sqrt{4900}$ $=$ $70$
Hence, Option B is correct.